CN202974498U - Internal high-voltage power distribution cabinet optical fiber temperature measuring system - Google Patents

Abstract

The utility model discloses an internal high-voltage power distribution cabinet optical fiber temperature measuring system. The system comprises a fluorescent optical fiber temperature sensor, an optical fiber, a multichannel optical fiber separator, a spectrum temperature analyzer, a control center computer, a network router, an Internet, a terminal router, an Internet wireless transmission base station, a computer and a mobile phone, wherein the fluorescent optical fiber temperature sensor serves as the internal high-voltage power distribution cabinet temperature measuring device; the optical fiber transmits the measured temperature signals out of a high and low voltage power distribution cabinet; the data inside the high-voltage power distribution cabinet are calculated via the spectrum temperature analyzer and the computer and then uploaded to the computer of the control center, or transmitted to the mobile phone of the user via the Internet and the wireless transmission base station, such that the temperature inside the high-voltage power distribution cabinet can be remotely monitored. The optical fiber sensor which is safe, reliable and can resist electromagnetic interference is used as the measuring apparatus, and the temperature measurement inside the high-voltage power distribution cabinet can be realized.

Description

A kind of high voltage power distributing cabinet internal optical fiber temp measuring system

Technical field

The utility model belongs to high voltage power distributing cabinet temperature survey field, relates to a kind of high voltage power distributing cabinet internal optical fiber temp measuring system.

Background technology

in enclosure-type high-low voltage electric power distribution cabinet apparatus field, requirement due to the working environment of enclosure-type power distribution cabinet, therefore the working environment of power distribution cabinet is airtight, along with various electronic devices and components and cable aging, important electrical equipment and the contact point between cable can be because dusts, loosening, oxidation and cause contact resistance excessive and generate heat, and abnormal heating position can cause various potential safety hazards, but the sealing requirements due to the enclosure-type power distribution cabinet, the way that the person's of patrolling and examining routine is patrolled and examined is difficult to observe inner working condition, and because the inside temperature measuring equipment of routine is all contactless temperature measuring device, and be easy to be subjected to the interference of the environmental factors such as various electromagnetism or power distribution cabinet internal temperature height, therefore it is inaccurate thermometric to appear, the shortcoming of job insecurity.Therefore the enclosure-type power distribution cabinet being carried out accurately online real-time thermometric has become a kind of industry needing to demand the problem of solution urgently.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high voltage power distributing cabinet internal optical fiber temp measuring system, has characteristics easy to use simple in structure.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of high voltage power distributing cabinet internal optical fiber temp measuring system comprises fluorescent optical fiber temperature sensor 2, optical fiber 3, optical fiber multi-channel optical fibre separation vessel 4, spectroscopic temperature analyser 5, control center's computing machine 6, network router 7, internet 8, end router 9, internet wireless transmission base station 11, computing machine 10 and mobile phone 12;

Wherein fluorescent optical fiber temperature sensor 2 is as the inner temperature measuring equipment of high voltage power distributing cabinet 1, optical fiber 3 transfers out high-low voltage electric power distribution cabinet with measured temperature signal, internal data through the high voltage power distributing cabinet after the calculating of spectroanalysis instrument 5 and computing machine 6 utilizes internet 8 to upload to the computing machine 10 of control center, perhaps be transferred to user mobile phone 12 by internet 8 and wireless transmission base station 11, so that the internal temperature of high voltage power distributing cabinet 1 is carried out remote monitoring.

Compared with prior art, the Fibre Optical Sensor of the safe and reliable anti-electromagnetic interference (EMI) of the utility model has been realized the temperature survey of high voltage power distributing cabinet inside as surveying instrument.

Description of drawings

Accompanying drawing is structural representation of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, the utility model is carried out more detailed explanation.

As shown in the figure, the utility model is a kind of high voltage power distributing cabinet internal optical fiber temp measuring system, mainly comprises fluorescent optical fiber temperature sensor 2, optical fiber 3, optical fiber multi-channel optical fibre separation vessel 4, spectroscopic temperature analyser 5, control center's computing machine 6, network router 7, internet 8, end router 9, internet wireless transmission base station 11, computing machine 10 and mobile phone 12.Several temperature monitoring points wherein are set uniformly in the inside of enclosure-type power distribution cabinet, especially there is the position of potential safety hazard, answer emphasis that the monitoring point is set, the fluorescent optical fiber temperature sensor 2 of contact is arranged on it, because fluorescent optical fiber temperature sensor 2 is to adopt the electromagnetism etc. of therefore not being subjected to of fluorescence temperature-measurement principle work to affect, can adopt contact temperature-measuring.Use optical fiber multi-channel optical fibre separation vessel 4, the fluorescent optical fiber temperature sensor of enclosure-type power distribution cabinet each monitoring point can be coupled together by optical fiber 3, then be connected on the light analyser of control center by the main communications optical cable of optical fiber continued access box.Wherein the variation that receives the luminous power that begins to calculate each check point of comparison after the light signal of each monitoring point of the spectroscopic temperature analyser 5 of control center's computing machine 6 draws temperature results, and temperature value is shown on the main screen display of control center, and signal is passed to each panalarm comprise audible-visual annunciator, temperature alarms etc. can also pass to the temperature value of measuring by internet 8 equipment on supervisor's the computing machine 10 of far-end or on mobile phone 12 by the internet.

Wherein the principle of fiber-optical grating temperature sensor is: fluorescence formula optical fiber temperature-measurement module is based on the integrated temp measuring system of fluorescence formula optical fiber temperature-measurement principle.Unique technical advantage is arranged aspect the industrial thermometric of this product under the particular surroundingss such as high voltage, strong electromagnetic.This product core adopts researches and develops latest generation fluorescence formula optical fiber temperature-measurement module and probe at present voluntarily, have that essential safety, anti-strong electromagnetic, electrical insulating property are good, anti-lightning strike, high precision, stable performance and, the advantage such as the life-span is long, corrosion-resistant, volume is little.The international advanced digital demodulation technology of its letter processing section employing has real-time online signals collecting, processing and transfer function.The temperature information of measured body is transferred to transmission from sensing, solution and is all utilized light signal to complete, fully realized non-electric detection and essential safety, can be widely used in generating, become multiple industrial environment and the research fields such as power transmission, Aero-Space, industrial microwave, medical treatment, food processing, petrochemical complex, plastic, rubber industry, microwave chemical.This product need not calibrate in lifetime, is particularly suitable in the special industry environment such as high voltage, strong electromagnetic (EMI/RFI/EMP) Real-Time Monitoring to temperature.Simultaneously, fluorescence formula optical fiber temperature-measurement modular design flexible form, reliability are high, can complete the multipoint temperature monitoring of topological structure complexity, have higher environmental suitability.The fluorescence optical fiber thermal module uses demodulation part and temperature probe to form, and probe is comprised of multimode optical fiber and the fluorescent object (film) installed at its top.Fluorescent material is after the light stimulus that is subject to certain wavelength (being excited to compose), and stimulated radiation goes out fluorescent energy.After excitation was cancelled, the continuation of fluorescence sunset glow depended on the factors such as fluorescent material characteristic, environment temperature.This fluorescence that is stimulated is normally decayed by exponential manner, and we claim that the time constant that decays is fluorescence lifetime or fluorescence sunset glow time (ns).We find, under different environment temperatures, the decay of fluorescence sunset glow is also different.Therefore by measuring the length in fluorescence sunset glow life-span, through the processing of demodulation part, just can learn environment temperature at that time.Main application fields is electric power application, medical applications, petrochemical complex, scientific domain, industrial microwave, Aero-Space; Performance index measurement range :-40 ℃～+ 200 ℃ (can be selected according to probe) measuring accuracies :+/-0.5 ℃ of Measurement sensibility degree :+/-0.1 ℃ of survey frequency: 2 Hz Measurement Resolution: 0.1 ℃ of power requirement: 5VDC,＜10mV ripple data-interface: RS232 optical fiber interface: HP fiber lengths:＜20m module size: 22*22*38mm.

The above; only the embodiment of the utility model method; be not that the utility model is imposed any restrictions, the variation of every any simple modification of above embodiment being done according to technical solutions of the utility model, structure replaces all still belonging in the protection domain of the utility model technological system.

Claims (1)

1. high voltage power distributing cabinet internal optical fiber temp measuring system, it is characterized in that, comprise fluorescent optical fiber temperature sensor (2), optical fiber (3), optical fiber multi-channel optical fibre separation vessel (4), spectroscopic temperature analyser (5), control center's computing machine (6), network router (7), internet (8), end router (9), internet wireless transmission base station (11), computing machine (10) and mobile phone (12);

Wherein fluorescent optical fiber temperature sensor (2) is as the inner temperature measuring equipment of high voltage power distributing cabinet (1), optical fiber (3) transfers out high-low voltage electric power distribution cabinet with measured temperature signal, internal data through the high voltage power distributing cabinet after the calculating of spectroanalysis instrument (5) and computing machine (6) utilizes internet (8) to upload to the computing machine (10) of control center, perhaps be transferred to user mobile phone (12) by internet (8) and wireless transmission base station (11), so that the internal temperature of high voltage power distributing cabinet (1) is carried out remote monitoring.